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A useful study! Full of the sorts of important details and caveats that get lost on social media:

- Results only good for 4 specific mask models, •not• all N95, KN95, etc

- Only studied reducing transmission •from• wearer, not •protecting• wearer

- Clear finding: •any• mask is much better than no mask; much-maligned cloth mask performed ~as well as KN95

- Paul reading between the lines a bit: •fit• is everything! Minimizing leakage >>> mask material
mastodon.social/@COVID19_DISEA

MastodonSARS-CoV-2 (COVID-19) (@COVID19_DISEASE@mastodon.social)Study Confirms One Type of COVID Mask Is 'Significantly Better' Than Others "The research shows that any mask is much better than no mask, and an N95 is significantly better than the other options” https://www.sciencealert.com/study-confirms-one-type-of-covid-mask-is-significantly-better-than-others
Exandra

@inthehands @COVID19_DISEASE the photo shows a N95 mask with a vent. I believed those were less useful for Covid because they vent infected air unfiltered into passers by?

@Alexbbrown @COVID19_DISEASE
Image credit is “Getty Images,” so I’m guessing the photo has zilch to do with actual masks studied.

…aaand yes, looked up the actual study, and this is the N95 in question: acin95.com

Misleading photo. Total journalistic faceplant.

Surgical N95 Respirator for Use in Healthcare SettingsACI Surgical N95 RespiratorA Surgical N95 Respirator approved as a NIOSH N95 filtering facepiece Respirator, for use in Healthcare Settings.